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Old 05-16-2018, 07:40 PM   #1
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Need advice on Cummins engine fan and cooler leaks

I took my 2007 Newmar Kountry Star DP into my chassis repair shop to do and oil change, brake repair and general inspection prior to an upcoming 2200 mi trip. The engine is the Cummins 400 ISL with only has 22,000 miles on the odometer. It has been religiously maintained, and stored indoors.

During the inspection, I was informed that I had a shaft leak in the hydraulic fan. They recommended replacing the fan motor, filters fluids etc. ($725 labor and $1336 for parts).

They also found that the transmission cooler was leaking and that the reservoir was totally empty. They estimated $435 labor just to diagnosis.

Total estimate, about $4000.

My question is should an engine have these kind of leaks at such a low milage, and does anyone have personal experience on how to fix it for less?
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Old 05-16-2018, 08:47 PM   #2
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That's the first time I ever heard of a reservoir for transmission fluid. The only reservoir I'm aware of is the hydraulic oil reservoir, which is connected to an oil cooler in the "sandwich" of coolers. That hydraulic system feeds the fan motor, power steering, etc. I suggest phoning Spartan customer service directly, they are quite helpful. Also there are several Cummins/Spartan service centers in CA. that are fully-trained in servicing your chassis. Quite often the brand specific shops are no higher cost than independent shops, but they have specific training.

The fan motor leak sounds doubtful, my 1999 Spartan chassis w/42K doesn't leak_yet.
IMO that chassis repair shop sounds suspect.
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